A lightning-fast memory or skill game. It just depends on which of the 5 different game options you choose. In any case, it's always about the lights under the soft buttons. For example, can you key them in as fast as they turn on, one after the other, until you make a mistake? Or do you remember the order in which they lit? The controller shape makes the game comfortable to hold. Various sounds build the tension. Although you can also choose to turn them off. Perhaps nicer to keep your nerves in check or for those around you.... Quickly insert 3 pieces of AAA batteries and face your personal challenges.